DTC Troubleshooting: C1120-96
DTC C1120-96: Electric Parking Brake Switch Malfunction
NOTE:
Before you troubleshoot, review the general troubleshooting information.
This DTC is detected when operating the electric parking brake switch continuously for more than 20 seconds.
Check that electric parking brake switch is free of dirt and other foreign particles.

DTC Description
DTC
Freeze Frame
C1120-96 Electric Parking Brake Switch Malfunction
    

1.
Electric parking brake switch check:

Electric parking brake switch check
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Check the electric parking brake switch.

Is the electric parking brake switch OK?

     
YES
     
     
     
Go to step 2.
     
NO
     
     
     
2.
Problem verification:

Problem verification
?1.
Turn the vehicle to the ON mode.

?2.
Clear the DTC with the HDS.


?3.
Turn the vehicle to the OFF (LOCK) mode, then to the ON mode.

?4.
Wait for about 20 seconds.

?5.
Check for DTCs with the HDS.
DTC Description
DTC
Freeze Frame
C1120-96 Electric Parking Brake Switch Malfunction
    

Is DTC C1120-96 indicated?

     
YES
     
     
     
Check for loose terminals and poor connections in the VSA modulator-control unit 46P connector. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting. If they are OK, replace the VSA modulator-control unit.?
     
NO
     
     
     
Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the Freeze data/on-board snapshot.?